Cremona's table of elliptic curves

1922 = 2 · 31²

Field	Data	Notes
Atkin-Lehner	2- 31-	Signs for the Atkin-Lehner involutions
Class	1922d	Isogeny class
Conductor	1922	Conductor
∏ cp	16	Product of Tamagawa factors cp
deg	1920	Modular degree for the optimal curve
Δ	-440201825776 = -1 · 24 · 317	Discriminant
Eigenvalues	2-  0 -2  0  0 -2  6  4	Hecke eigenvalues for primes up to 20
Equation	[1,-1,1,-661,-32419]	[a1,a2,a3,a4,a6]
Generators	[21257:3088538:1]	Generators of the group modulo torsion
j	-35937/496	j-invariant
L	3.7985906461558	L(r)(E,1)/r!
Ω	0.40215572824764	Real period
R	9.4455714026701	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	15376u1 61504k1 17298i1 48050b1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1922d1

a2	a3	a5	a7	a11	a13	a17	a19	a23	a29	a31	a37	a41	a43	a47	a53	a59	a61	a67	a71	a73	a79	a83	a89	a97
-	0	-2	0	0	-2	6	4	-8	-2	-	-10	-6	-8	-8	6	-12	6	-12	8	-10	8	-8	6	2

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Quadratic twists for elliptic curve 1922d1

-4	8	-3	5	-7	-31
15376u1	61504k1	17298i1	48050b1	94178u1	62a1

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Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
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